Circular saw.



Patented Aug. 22, |899.

G. WAGNER.

CIRCULAR SAW.

(Application filed Jan. 14, 1898.)

(No Model.) Q

TH: Nonms Ptrzns co., moraumu.. wAsNmroN, u. c,

UNITED STATES PATENT OFFICE.

GUSTAV'WAGNER, OF REUTLINGEN, GERMANY.

CIRCULAR SAW.

SPECIFICATION forming part ef Letters Patent No. 631,684, dated August a2, 1899.- Application filed January 14,1898. Serial No. 666599.k (No model.)

To @ZZ whom t may concern:

Beit known that I, GUsTAv WAGNER, of Reutlingen, in the Kingdom of Wrtemberg, German Empire, have invented Improvements in Circular Saws, of which the following is a speciicatiomreference being had therein to the accompanying drawings.

The obj ectof the present invention consists of an improvement in circular saws chiefly ro characterized by the arrangement that, combined with a continuous advance of the saw, an adjustment of the saw itself is rendered possible in the simplest manner. Moreover,

in this machine the parts eecting the con-- r 5 tinuous yielding advance are constructed'in the simplest manner, which considerably reduces the labor with such machines.

The machine in question is illustrated in the drawings, in which Figure 1 shows it partly in elevation and partly in section. Fig. 2 shows a transverse section through the machine. Fig. 3 shows a view of the head of the saw.- Fig. 4 shows another modification of the continuous advancing mechanism. Fig. 5 shows a view of the reversing mechanism, and Figs. 6 and 7 show details.

The machine-bed 1 of the machine contains a basin 2, which is usually filled with water,

5o so that the saw 3 in the case of a vertical or slightly-inclined position can run completely in water, and thusremains cool, and there can under normal circumstances be a very great speed of rotation imparted to the saw.

3 5 The axle 4, which conveys the motion of the pulley 5 to the saw, is supported in a quadrangular sliding piece 6, which is arranged in the box '7, adjustable in the horizontal direction. The said piece 6 possesses in front a 4o head 8, which is supported revolubly with a box 9 in the said sliding piece 6, turning about the center of the shaft 4. The head 8 can be revolved around the axis of the axle 4 by means of a screw 10, which is supported in the concentric slot 11 in the said head 8, and the head can be iixed in any position, so that the adjustment of the saw 3 in every direction can be effected, because the said saw 3 is supported in the head 8 by means of the 5o axle I2. The transmission of the motion of the axle 4 to the saw is eected by means of the worm 13 and the worm-wheel 14. In this i' man ner there is therefore provided an adj ust ment of the saw to any angle in the simplestv possible manner by releasing the screw 10 and turning about of the head 8. Moreover, the whole mechanism is movable by means of the quadrangular sliding piece 6 on the bed 7.

In the machine illustrated in Fig. 1 the continuous yadvance is obtained by the arrangement that in the frame 1 a tooth-wheel 15 engages in the lower part of the sliding frame constructed as a rack 16. Upon the toothwheel shaft is placed outside a disk 17, which disk has imparted to it by means of a cord and a weight 18 thecontinuous effect to revolve thetooth-wheel and thereby to advance the sliding piece. The advance is consequently rendered continuous and also yielding.

Fig. 4 illustrates another modification of the continuous yielding advancing mechanism. The sliding piece 6 bears at its hinder end an arm 19, provided with eyelet-bearings 20. The said eyelet 2O is connected with a spindle 21,placed above the sliding piece 6. This spindle 21 is provided in front with a screw and bears a matrix 22, supported in a bearing 23, which can be connected with the part 7 of the frame l. side the said matrix 22 is formed as a rack, into which a ratchet 24 engages, which is also supported on a piece 23 and bears on a shaft a weightV 25. Through the influence of the weight 25 the matrix 22 continuously strives to advance and presses, consequently, with the disk connecting-piece 22, continuously against the hinder part of the support, but is free to yield if it encounters a pressure in the opposite direction. As already stated, the spindle 21 bears a screw thread. Consequently it can be screwed to and fro in ythe matrix. The spindle 21 bears, as shown in Fig. 5, at its end a tooth-wheel 26, in which a reversible dog 27 engages, which is placed eccentrically upon the prolonged drivingshaft 4 of the machine. This dog has a counterweight 28, whereby a continuous revolving of the tooth-Wheel 26, and consequently an advance of the spindle 21, is caused. As, however, the spindle 21 is revolubly supported in the eyelet 2O oi' the arm 19, but is prevented by means of two set-rings from sharing the motion of the longitudinal axis, the said arm is obliged to move forward with Upon the upper the same, and thereby to impart to the sliding piece 6, together with the axle 4 and the saw 3, a continuous advance, while it notwithstanding allows of a yielding of the saw, and the spindle 21 allows of such in the direction of the axle.

Instead of the tooth-wheel and dog,as shown in Figs. 4 and 5, the devices shown in Figs. 6 and 7 may be employed. The same are char acterized, essentially, by the arrangement of a strap 29, which passes overaroller 30 upon the shaft 21 and over the eccentric 3l, connected with the shaft 4. At each revolution of the shaft 4 the strap 29 is stretched and thereby the spindle 21 caused to revolve somewhat. This arrangement has the advantage that it works with less noise than the arrangement shown in Figs. 4 and 5.

What I claim, and desire to secure by Letters Patent of the United States, is

1. In a machine of the character described, the combination of the bearing-box 7, the sliding part 6 supported in the box 7, means for moving the part 6 in its bearing-box 7, a driving-shaft 4 journaled in part 0, the saw-supporting head adjustably mounted upon the part 6, the saw journaled in said head, and gearing between the shaft 4and the saw, substantially as set forth.

2. In a machine of the character described, the combination of the bearing-box 7, the sliding part 6 supported in box 7 and having a rack 16, a pinion 15 engaging rack 16, means for operating pinion l5,a driving-shaft 4 journaled in part 6, a saw adjustably mounted upon part 6, and gearing between the shaft 4 and the saw, substantially as set forth.

In witness whereof I have hereunto set my hand in presence of two witnesses.

GUSIAV WAGNER. Witnesses:

C. KAUFMANN, E. SCHNHU'I. 

